EP2302270B1 - Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz - Google Patents

Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz Download PDF

Info

Publication number
EP2302270B1
EP2302270B1 EP20090171662 EP09171662A EP2302270B1 EP 2302270 B1 EP2302270 B1 EP 2302270B1 EP 20090171662 EP20090171662 EP 20090171662 EP 09171662 A EP09171662 A EP 09171662A EP 2302270 B1 EP2302270 B1 EP 2302270B1
Authority
EP
European Patent Office
Prior art keywords
medium
volume
reservoir
primary reservoir
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20090171662
Other languages
German (de)
English (en)
Other versions
EP2302270A1 (fr
Inventor
Klaus Leonard Witt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sun Test Systems BV
Original Assignee
Sun Test Systems BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sun Test Systems BV filed Critical Sun Test Systems BV
Priority to EP20090171662 priority Critical patent/EP2302270B1/fr
Priority to US12/892,644 priority patent/US8381583B2/en
Publication of EP2302270A1 publication Critical patent/EP2302270A1/fr
Application granted granted Critical
Publication of EP2302270B1 publication Critical patent/EP2302270B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8225—Position or extent of motion indicator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8326—Fluid pressure responsive indicator, recorder or alarm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8359—Inspection means

Definitions

  • the invention relates to a method for determining a functioning of a gas bleed valve in a primary reservoir for a medium for a hydraulic system.
  • a method for determining a functioning of a gas bleed valve according to the preamble of the independent claim is known from EP 1 926 009 .
  • Gas bleed valves may be used for allowing undissolved gas in a hydraulic system to escape out of a primary reservoir of the system. Determining whether the gas bleed valve is functioning correctly is very important because the hydraulic system may be used for controlling an airplane. If the gas bleed valve is not working correctly undissolved gas may collect in the hydraulic system and controlling the airplane may be jeopardized by the undissolved gas.
  • the undissolved gas may for example interrupt the working of a pump that is used for keeping a medium in the hydraulic system at the right pressure during normal operation. If the working of the pump is interrupted the pressure may drop in the high and the low pressure part of the hydraulic system causing the dissolved gas in the system to escape the solution and increase the amount of undissolved gas in the hydraulic system even more.
  • the gas bleed valve may not be able to allow the undissolved gas to escape from the hydraulic system if the undissolved gas is not in the neighbourhood of the gas bleed valve or the gas bleed valve itself is blocked.
  • a method for determining a functioning of a gas bleed valve in a primary reservoir of a medium for a hydraulic system comprising:
  • Determining the functioning of the gas bleed valve may comprise determining whether there is a linear relation between volume and pressure.
  • the gas bleed valve may be functioning correct if there is a linear relation between volume and pressure and the gas bleed valve may be malfunctioning if there is no linear relation between the volume and the pressure.
  • the primary reservoir may be a piston type reservoir comprising a medium volume measurement sensor and the method may comprise measuring the change of the medium volume in the primary reservoir with the primary reservoir medium volume measurement sensor.
  • the functioning of the gas bleed valve may comprise calculating a difference between the measured volume of the medium pumped to the primary reservoir and the change of the medium volume measured in the primary reservoir.
  • the gas bleed valve may be working correctly if there is a difference between the measured volume of the medium pumped to the primary reservoir and the change of the medium volume measured in the primary reservoir it self.
  • the hydraulic system may during normal operation comprise a low pressure part and a high pressure part and the primary reservoir may be connected to the low pressure part during testing.
  • the method may further comprise connecting the high pressure part to the separate reservoir via the pressure sensor and pumping medium in the high pressure part during testing as well. Pumping the medium into the primary reservoir and measuring the volume and pressure may be done until a set value of the test pressure e.g. 5-10 Bar may be reached. After the set value of the test pressure is reached the pressure may be maintained and subsequently pumping may be resumed until the volume pumped is between 0 and 100ml per second.
  • Figure 1 shows a testing apparatus 1 provided with a separate reservoir 3, a pressure sensor 5 and a pump 7 connected to a hydraulic system 9 of an apparatus 11 to be tested e.g. an airplane.
  • the hydraulic system 9 is provided with a primary reservoir 13 comprising a gas bleed valve 15 which is used to evacuate gas from the medium e.g. oil in the primary reservoir 13. If there is gas in the medium the working of the hydraulic system 9 can be deteriorated so that the functioning of the apparatus 11 can be hindered.
  • a second pump 17 which during normal operation of the apparatus 11 is used to bring the medium in the high pressure part of the hydraulic system 9 at the required high pressure e.g. 210 -350 Bar cannot work if gas is sucked into the second pump 17.
  • the high pressure part of the hydraulic system 9 is used via a first piston 19 to bring the medium at the primary reservoir 13 at a return pressure e.g. 5-10 Bar with a second piston 20 during normal operation of the system.
  • the hydraulic system 9 may be connected via connections 21 and 23 to the testing apparatus 1 during testing.
  • the testing apparatus 1 may be provided with connections 25, 27 to connect to the apparatus 11. Further the testing apparatus 1 may be provided with a filter 29 to filter the medium and a volume measurement tool 31 for measuring a volume of medium flowing to the apparatus 11 to be tested. Valves 33, 35 and 37 may be used to control the working of the testing apparatus, as depicted valve 37 is closed while the other valves 33, 35 are open.
  • the primary reservoir 13 After the apparatus 11 to be tested is connected via the connections 25, 27 to the connections 21, 23 of the testing apparatus 1 the primary reservoir 13 will be filled until its maximum.
  • the pump 7 will be used to pump medium from the separate reservoir 3 via the filter 29, the valve 33, the volume measurement tool 31 and the connections 21, 23, 25 and 27 to the primary reservoir 13.
  • the primary reservoir 13 comprises a second piston 20 which moves to its end stop by the medium being pumped in the primary reservoir 3 by the pump 7. 7. When the end stop is reached pumping is stopped.
  • the maximum volume of the reservoir may for example be 14 litres and the pump may for example pump 3 to 4 litre of the medium in the primary reservoir to fill it to its maximum at the end stop from a normal volume of 10 or 11 litres.
  • the pressure measured by the pressure sensor 5 may go from 0 to 2 bars during the pumping and if the end stop is reached the volume measurement tool 31 will give a flow of 0 litre indicating that the primary reservoir is filled. If the gas bleed valve 15 is functioning correctly, any undissolved gas in the hydraulic system 9 may escape out of the primary 13 reservoir of the system. During filling the primary reservoir the volume of medium in the primary reservoir 13 may also be measured. From a comparison of the volume pumped by the testing apparatus 1 and measured by the measurement tool 31 with the volume measured in the primary reservoir 13 the amount of gas that was escaped during pumping can be determined. Often the volume in the reservoir cannot be measured with enough accuracy or reliability to determine a functioning of a gas bleed valve.
  • the pressure on the hydraulic system by the testing apparatus is released for a while. Subsequently, the pressure is increased again until the set value of the test pressure e.g. 5-10 Bar is reached and the volume of medium pumped into the hydraulic system is measured as a function of the pressure.
  • the volume can be read out from e.g. a medium level window in the separate reservoir 3, a sensor or by the volume measurement tool 31.
  • the next step in determining the functioning of the gas bleed valve 15 comprises determining whether there is a linear relation between volume V and pressure P. If there is a linear relation (see figure 2a ) there is no undissolved gas and the gas bleed valve 15 may be functioning correct. By pumping more medium into the primary reservoir the pressure P is increased rapidly because there is no space where the medium can go and no gas which can be compressed. The gas bleed valve is malfunctioning if there is no linear relation between the volume V and the pressure P (see figure 2b ). The extra medium pumped into the hydraulic system causes the undissolved gas in the hydraulic system to be compressed and the pressure P is only increasing slowly. In this test the correct functioning of the gas bleed valve for gas in the primary reservoir or in the vicinity of the primary reservoir is tested.
  • the cause of the malfunctioning of the bleed valve may also not be determined with this method.
  • the malfunctioning can be caused by the bleed valve being broken/blocked or the gas being not in the vicinity of the gas bleed valve.
  • the pressure is released again and subsequently pumping is resumed until the volume pumped by the pump is between 0 and 100ml per second. Since the pressure is increased over a longer period of time the test pressure will also reach the high pressure part of the system. If at the test pressure still medium is pumped in the high pressure part of the system there is undissolved gas in the high pressure part of the system.
  • the primary reservoir may be a piston type reservoir and may be provided with a measurement tool for measuring a volume of a medium in the primary reservoir.
  • a measurement tool for measuring a volume of a medium in the primary reservoir.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Claims (13)

  1. Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz dans un réservoir principal d'un milieu pour un système hydraulique, le procédé comprenant les étapes consistant à :
    raccorder un appareil de test avec un réservoir séparé du milieu, au réservoir principal ;
    pomper le milieu du réservoir séparé vers le réservoir principal ;
    caractérisé en ce que le procédé comprend les étapes consistant à :
    mesurer le volume du milieu pompé du réservoir séparé au réservoir principal ; et
    déterminer le fonctionnement de la soupape de purge de gaz en comparant le volume du milieu amené par pompage dans le réservoir principal avec :
    un changement du volume du milieu mesuré dans le réservoir principal, ou bien
    un changement de la pression du milieu amené par pompage dans le réservoir principal.
  2. Procédé selon la revendication 1, dans lequel l'appareil de test comprend un capteur de pression pour mesurer la pression du milieu pompé dans le réservoir principal.
  3. Procédé selon l'une quelconque des revendications précédentes, dans lequel le réservoir principal est un réservoir de type à piston et le procédé comprend l'étape consistant à remplir le réservoir de type à piston jusqu'à ce que le piston atteigne sa butée d'extrémité.
  4. Procédé selon la revendication 1 ou 2, dans lequel un système de mesure de volume du milieu est prévu entre le réservoir séparé et le réservoir principal et le volume du milieu pompé est mesuré avec le système de mesure de volume du milieu.
  5. Procédé selon la revendication 1 ou 2, dans lequel l'étape consistant à mesurer le volume du milieu pompé comprend l'étape consistant à lire un niveau de milieu dans le réservoir séparé.
  6. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'étape consistant à déterminer le fonctionnement de la soupape de purge de gaz comprend l'étape consistant à déterminer s'il existe une relation linéaire entre le volume et la pression.
  7. Procédé selon la revendication 6, dans lequel la soupape de purge de gaz fonctionne correctement s'il existe une relation linéaire entre le volume et la pression et la soupape de purge de gaz présente un dysfonctionnement s'il n'existe pas de relation linéaire entre le volume et la pression.
  8. Procédé selon la revendication 1, dans lequel le réservoir principal est un réservoir de type à piston comprenant un capteur de mesure de volume du milieu et le procédé comprend l'étape consistant à mesurer le changement du volume du milieu dans le réservoir principal avec le capteur de mesure de volume du milieu du réservoir principal.
  9. Procédé selon la revendication 1 ou 8, dans lequel l'étape consistant à déterminer le fonctionnement de la soupape de purge de gaz comprend l'étape consistant à calculer une différence entre le volume mesuré du milieu amené par pompage dans le réservoir principal et le changement du volume du milieu mesuré dans le réservoir principal.
  10. Procédé selon la revendication 9, dans lequel la soupape de purge de gaz fonctionne correctement s'il existe une différence entre le volume mesuré du milieu amené par pompage dans le réservoir principal et le changement du volume du milieu mesuré dans le réservoir principal.
  11. Procédé selon l'une quelconque des revendications précédentes, dans lequel le système hydraulique pendant le fonctionnement normal comprend une partie de basse pression et une partie de haute pression et le réservoir principal est raccordé à la partie de basse pression pendant le test, dans lequel le procédé comprend l'étape consistant à raccorder la partie de haute pression au réservoir séparé via le capteur de pression et pomper le milieu dans la partie de haute pression pendant le test également.
  12. Procédé selon l'une quelconque des revendications précédentes, dans lequel l'étape consistant à pomper le milieu dans le réservoir principal et mesurer le volume et la pression est réalisée jusqu'à ce qu'une valeur de consigne de la pression de test soit atteinte.
  13. Procédé selon la revendication 12, dans lequel après que la valeur de consigne de la pression de test a été atteinte, la pression est maintenue et le pompage successif est repris jusqu'à ce que le volume pompé soit compris entre 0 et 100 ml par seconde.
EP20090171662 2009-09-29 2009-09-29 Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz Active EP2302270B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20090171662 EP2302270B1 (fr) 2009-09-29 2009-09-29 Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz
US12/892,644 US8381583B2 (en) 2009-09-29 2010-09-28 Method for determining a functioning of a gas bleed valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20090171662 EP2302270B1 (fr) 2009-09-29 2009-09-29 Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz

Publications (2)

Publication Number Publication Date
EP2302270A1 EP2302270A1 (fr) 2011-03-30
EP2302270B1 true EP2302270B1 (fr) 2012-09-12

Family

ID=41698422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090171662 Active EP2302270B1 (fr) 2009-09-29 2009-09-29 Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz

Country Status (2)

Country Link
US (1) US8381583B2 (fr)
EP (1) EP2302270B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2008927C2 (en) * 2012-06-04 2013-12-05 Sun Test Systems B V Method for determining the presence of undissolved gas in a hydraulic system.
US10710569B2 (en) * 2013-11-20 2020-07-14 Ford Global Technologies, Llc Method for bleeding a vehicle brake system
US10563784B2 (en) 2016-02-24 2020-02-18 Eaton Intelligent Power Limited Pressurized fluid system including an automatic bleed value arrangement; components; and, methods

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569299A (en) * 1949-07-25 1951-09-25 Fegel Albert Testing device for carburetor valves
US3098382A (en) * 1960-03-04 1963-07-23 Lockheed Aircraft Corp Hydraulic test equipment
US3270557A (en) * 1964-03-26 1966-09-06 Owatonna Tool Co Hydraulic circuit tester
JPS51859B1 (fr) * 1970-04-21 1976-01-12
US4114426A (en) * 1977-10-25 1978-09-19 Mclean F Ronald Liquid volumetric line leak testing apparatus
US4184359A (en) * 1978-08-30 1980-01-22 Aerojet-General Corporation Gas monitor for liquid flow line
US4294109A (en) * 1979-12-19 1981-10-13 Cummins Engine Company, Inc. Test apparatus for hydraulic valve
FR2524603A1 (fr) * 1982-03-31 1983-10-07 Framatome Sa Procede de controle du fonctionnement d'une soupape et banc d'essai mecanique pour la mise en oeuvre du procede
FR2567643B1 (fr) * 1984-07-13 1988-03-25 Framatome Sa Procede et dispositif d'essai d'une soupape de surete a commande pilote
US4682495A (en) * 1986-05-14 1987-07-28 Anderson, Greenwood & Company Testing device for pilot valves
US4669500A (en) * 1986-05-23 1987-06-02 Wheatley Pump And Valve, Inc. Check valve actuator
US4766765A (en) * 1986-11-13 1988-08-30 Westinghouse Electric Corp. Multiphase valve testing
US4926704A (en) * 1989-04-10 1990-05-22 Flow Design, Inc. Valve test plug
US5048329A (en) * 1990-08-27 1991-09-17 Commonwealth Edison Company Hydraulic valve test device
DE69325190T2 (de) 1992-01-23 1999-10-28 Sun Electric Systems B.V., Weesp Verfahren und Vorrichtung zur Erkennung von ungelöstes Gaz in hydraulische Systemen
GB2273316B (en) * 1992-12-12 1996-02-28 Rolls Royce Plc Bleed valve control
US5767389A (en) * 1995-07-26 1998-06-16 Automotive Products (Usa), Inc. Method and apparatus for testing a fluid pressure apparatus
US6719002B2 (en) * 1996-02-20 2004-04-13 Presto-Tap, Llc Pressure testing apparatus for gas service delivery systems
US6223766B1 (en) * 1996-02-20 2001-05-01 Presto-Tap, Llc Pressure testing apparatus and testing method for propane tank systems
NL1004028C2 (nl) 1996-09-13 1998-03-16 Sun Electric Systems Bv Werkwijze voor het bepalen van de hoeveelheid onopgelost gas in een hydraulisch systeem.
GB2335742B (en) * 1998-03-23 2002-07-10 British Gas Plc Fluid pressure testing
SE522010C2 (sv) * 1999-03-17 2004-01-07 Dart Engineering Ag Anordning vid snabbkopplingsdel anslutningsbar till system med trycksättningsbart media samt sådan snabbkopplingsdel
US6557400B2 (en) * 2001-03-30 2003-05-06 Honeywell International Inc. Surge bleed valve fault detection
GB0109372D0 (en) * 2001-04-12 2001-05-30 Bevan Engineering Ltd Rotary bleed valve assembly
US6899317B2 (en) * 2003-09-05 2005-05-31 P.T.V. Enterprises, Llc Combined test and bleed valve fitting
US7210338B2 (en) * 2005-07-29 2007-05-01 Honda Motor Co., Ltd. Valve testing device having integrated purge circuit and method of valve testing
FR2897123A1 (fr) * 2006-02-08 2007-08-10 Airbus France Sas Dispositif de purge et systeme hydraulique comportant un tel dispositif de purge.
GB0619243D0 (en) * 2006-09-29 2006-11-08 Rolls Royce Plc Activation sensing

Also Published As

Publication number Publication date
EP2302270A1 (fr) 2011-03-30
US8381583B2 (en) 2013-02-26
US20110072881A1 (en) 2011-03-31

Similar Documents

Publication Publication Date Title
EP2270342B1 (fr) Système de détection de fuite dans une éolienne
US8731727B2 (en) Method for controlling a digital hydraulic controller
CN100543628C (zh) 利用控制环路操作控制阀并对该控制环路执行诊断的方法和装置
KR100898318B1 (ko) 안전밸브 시험장치
CN204628778U (zh) 水击泄压阀、背压阀和水击泄压阀系统
US8718880B2 (en) Hydraulic system calibration method and apparatus
JP4942761B2 (ja) 内燃エンジンのオイル消費を自動的に測定し前述のエンジンのオイルを交換する方法と装置
EP2302270B1 (fr) Procédé pour déterminer le fonctionnement d'une soupape de purge de gaz
CN114382733B (zh) 智能液压系统及液压顶升装置
KR100713621B1 (ko) 공기구동식 제어밸브의 성능진단 방법
JP5692542B2 (ja) 推定センサ値を利用する流体回路の制御
EP3693639B1 (fr) Unité de mesure de carburant
KR20200056755A (ko) 스마트 밸브 시스템
US20220008634A1 (en) A method for checking the conveying accuracy of conveying devices of a medical treatment apparatus, and apparatuses
EP2489909A1 (fr) Soupape de décharge de pression
KR101551761B1 (ko) 버터플라이밸브 충격압력 시험장치
KR20170060988A (ko) 디젤 고압 펌프 검사 장치 및 방법
CN216198061U (zh) 一种钻井溢流漏失监测装置
KR101713723B1 (ko) 연료압력센서의 열화 감지 시스템과 그 감지 방법
EP2672126B1 (fr) Procédé pour déterminer la présence de gaz non dissous dans un système hydraulique
EP3298279B1 (fr) Circuit pour alimenter une chambre gonflable avec un fluide
EP3785002A1 (fr) Procédé de test de l'intégrité d'une structure séparant une chambre d'un environnement adjacent, et appareil associé
CN103939346B (zh) 容量调节机构检测装置及其检测方法
KR20190019369A (ko) 공기식 컨트롤 밸브 고장 진단 방법
KR20110032554A (ko) 공기구동밸브의 특성시험 방법과 이를 이용한 공기압 및 스프링 프리로드의 설정방법

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

17P Request for examination filed

Effective date: 20110927

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F16K 37/00 20060101ALI20111028BHEP

Ipc: F16K 24/04 20060101AFI20111028BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 575265

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009009660

Country of ref document: DE

Effective date: 20121108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121212

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120912

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 575265

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120912

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Effective date: 20120912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121213

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121223

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130112

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120930

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130114

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120929

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121212

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130628

26N No opposition filed

Effective date: 20130613

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121112

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009009660

Country of ref document: DE

Effective date: 20130613

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130930

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090929

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130930

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120912

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230919

Year of fee payment: 15